National Highway 183A (India)


National Highway 183A, also known as NH 183A, is a National Highway in the Indian state of Kerala that runs from Titanium Junction, to Vandiperiyar via Adoor and Pathanamthitta. It is the 4th National Highway passing through the Kollam district.

Elevation to National Highway

The road was declared a National Highway on 4 March 2014. It conforms to NH standards for a two-lane traffic highway from Adoor to Plapally. The section past Plapally is only 4 meters wide and passes through forest and wildlife areas. The Forest Department raised concerns over the road's alignment. Once upgraded, a new connection from Vandiperiyar to Sabarimala is planned.
Currently the stretch between Angamoozhy Forest Checkpost and Vallakadavu Forest Checkpost is entry restricted and the forest department allows only 30 private vehicles per day on the route and vehicles entering through Kochandi Check post has to leave only through Vallakkadavu Check post before 6 pm.

Major cities and linking towns

The stretch between Adoor and Pathanamthitta is one of the road's busiest sections. Most traffic consists of trucks carrying consumer goods, construction material, container trucks and passenger vehicles. At night, the highway handles more goods-related traffic. Many large industry like Kerala Minerals and Metals limited, small scale cottage industries, rubber plantations, Engineering colleges and textile parks are located along this highway. This highway is particularly busy during the Sabarimala Season and is one of the trunk ways.
Passenger traffic in this stretch is shared by both KSRTC and Private buses. The Kollam – Pathanamthitta chain service and Punalur – Kanjirappally chain services of KSRTC serve this route.